Perfect for bands, DJs, KJs, solo artists, schools, presentations and meeting rooms, the S40 PA System by SoundTech was designed to be affordable, portable, practical and professional, yet made to deliver the power necessary for handling live professional situations that demand high-quality sound that won't break your budget. No other system on the market is loaded with as many features and power as the S40. The S40 has a color-coded knob system that makes it extremely easy to operate. Now you don't need to be a "sound engineer" to get the pro sound you're looking for and need. Stick with the leaders in "Affordable yet Professional Audio" and choose SoundTech as your next smart purchase!